Patents by Inventor Zhen-Sheng Tang

Zhen-Sheng Tang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5423814
    Abstract: A bipolar coagulation device suitable for use in endoscopic surgery is disclosed which reduces the adhesion of tissue to the electrodes and enables the user to clean the electrodes during the procedure without removal from the body. Bipolar electrocautery forceps are located at the distal end of a sheath suitable for use in endoscopic surgery. The tips of the forceps are manipulated using controls located at the control end of the sheath which remains outside the patient's body. The tips of the forceps are made of material having phosphorous in combination with metals of high thermal conductivity, which reduces the adhesion of tissue during cauterization. In addition, the device has a cleaner which acts to free the forceps of any adhering debris. This cleaning can be done inside the patient's body, without the need for any additional instrumentation. In a preferred embodiment, the tips of the bipolar coagulation device can also be pivoted to an angularly disposed position.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: June 13, 1995
    Assignee: Loma Linda University Medical Center
    Inventors: Yong H. Zhu, Wolff M. Kirsch, Zhen-Sheng Tang